Reconsider static definitions in tests

[GregHib]

Setting a clearing definition objects for tests has been working fine up until f08006538f91fe57e9f813dd2361aea9c5b3911a where a bot test would run in-between WorldTest's causing VariableDefinitions to be wiped or overriden, which in turn would cause Wildcards.load to fail and that produced a gradle error with no message found (unless adding --info).

Potential options:

1. Remove Static definitions entirely - Problematic, complete reverse of Make all definitions static #839
2. Have a way to temp store existing values and revert after test completion
   3 ?